Electric-light reflector.



G. F. ALLOM. ELECTRIC LIGHT REFLEGTOB. APPLICATION FILED APR.Q,1910.

96 1 1'96 Patented June 14, 1910.

GILBERT FOX ALLOM, OF LONDON, ENGLAND.

ELECTRIC-LiG-HT REFLECTOR.

Application filed April 8,

Specification of Letters Patent.

Patented Juneil, rate. 1910. Serial No. teaser.

To all whom it mwy concern:

Be it, known that I, Gmsnn'r Fox ALLOM, a subject of the King of GreatBritain, residing at 15 George street, Hanover Square, London, England,have invented new, and useful Improvements 'in Electric LightReflectors, and of which the following is a specification. I

My invention relates to reflectors for use in connection with electriclamps, and to that class of reflector chiefly intendedior illuminatingpictures and tapestries and which isof channel shape and provided withtubular lamps which lie in the back'of the channel. hen reflectors ofthis kind are used it frequently happens that a person standing to viewa picture will, in looking at the upper part of the picture, either seethe lamps, or the glare from the upper part of the reflector, also anobjeetional glare is sometimes cast on to the top of the picture.

Now, the object of my invention is to provide means which will bothobscure the lamps and prevent a glare either to the eyes of an observeror upon the top of the picture Without at the same time interfering withthe illumination of such picture.

I To this end my invention consists. in arranging a screen or screensinside the reflector in such positions, that it or they will conceal thelamp and cover the glaring part of the reflector in the mannerhereinbefore described-the screens being mounted in the reflector insuch a way that they can be ar ranged with their surfaces approximatelyparallel to the rays which pass on both sides of them so that-theyobstruct only'a minimum of light from the object to be illuminated.

My inventiori will bereadily understood by reference to the accompanyingdrawing, -in which:- Figure 1 is a sectional side viewof a lightingfitting carrying a reflectou'ofthe kind in question and having twoscreens applied, v to it according to my invention and Fig. Q

is a view looking in the direction of the; arrow, Fig. 1.

Tn these figures a indicates an Channel shaped reflector, and b, b thelamps arranged therein, the said reflectors heing' ordinary/ shaped in awell-known manner so that the rays 'willbe reflected from it in more orless parallel lines. 4 a, 0 are the screens which are arranged, inaccordance with my invention, at some distance from the surface of thereflector so the said screens being plain or non-reflecting metal stripsattached at their ends to the reflector, tor instance, by screws d, dwhich allow the said strips to be placed at any suitable angle.

can stand'beneath the reflector in a much more forward osition, withoutseeing the lamp, than would be the case if the screen 0 was notemployed, and the screen 0 which latter screen also prevents the upperart of the picture being unduly illuminated: but allows of theillumination being concentrated on the central of the picture or thelike.

It will be understood that the width and len th of the screens 0, 0 canbe varied according. to the size of the reflector and the number of thelamps which the latter is intended to carry, also in some cases one ofthe screens can be dispensed with, or, if desired more than two screenscan be em-, ployed.

Claims.

1. In a lighting fixture, the combination with a channel-shapedreflector having a tubular lamp or lamps fixed in the packet thechannel, of a screen or screens having a plurality of non-reflectingsurfaces and ocated in said channel. v

2. The eombinati'eu'with a channel shaped reflector, havingJubu-larlamps fixed in the back of the channel, of non-reflecting screensportions GILBERT FOX ALLOM.

. Witnesses:

JOHN E. Bonsrmno,

adjustably secured to the end surface of the that the light rays canpass behind them, l

With the described arrangement a person lare from the top of thereflector will be 0 soured by the 7Q;

